barbara starr joins us from the pentagon. not just petraeus but other cases that i guess have precipitated panetta's response. right? >> reporter: absolutely, fredericka. of course, general john allen, the commander in afghanistan under review, investigation for sending potentially inappropriate e-mails, two other four-stars just went through investigations for irregularities in the travel and expense accounts. a number of lesser if there's such a thing of generals and admirals also in recent months under investigation for variety of things, so panetta's issued an order saying that he wants the joint chiefs of staffs to look at ethic training for senior nil tear leaders. what are we talking about here? basically, you know, don't cheat on your wife. don't cheat on your taxes. don't go get too drunk in public. you know? and don't cheat on your expense account. you think it's the blinding flash of the obvious, wouldn't you? but we have talked to a number of officials say panetta is just very aware of the public perception right